111231122203 has 4 divisors (see below), whose sum is σ = 111235480488. Its totient is φ = 111226763920.

The previous prime is 111231122183. The next prime is 111231122221. The reversal of 111231122203 is 302221132111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302221132111 = 139 ⋅2174252749.

It is a cyclic number.

It is not a de Polignac number, because 111231122203 - 2¹³ = 111231114011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111231122243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2140633 + ... + 2191978.

It is an arithmetic number, because the mean of its divisors is an integer number (27808870122).

Almost surely, 2^111231122203 is an apocalyptic number.

111231122203 is a deficient number, since it is larger than the sum of its proper divisors (4358285).

111231122203 is an equidigital number, since it uses as much as digits as its factorization.

111231122203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4358284.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 111231122203 its reverse (302221132111), we get a palindrome (413452254314).

The spelling of 111231122203 in words is "one hundred eleven billion, two hundred thirty-one million, one hundred twenty-two thousand, two hundred three".